Delphi for Electronics Engineers (5)

measuring with the sound card

In Part 4 of this course, we used the PC sound card to generate a variety of waveforms. In this instalment, we turn this around. Here waveforms arriving via the line input of the sound card are stored and then displayed on the screen. Before turning our attention to describing how to program such a ‘PC oscilloscope’, we examine a few Delphi topics you’ll need for this task.

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